Pull strap connector with improved pull strap pressing member and method of making the same

Abstract

A pull strap connector includes an insulating body, a tongue plate, a cable, a pull strap unlocking device and a pull strap. The insulating body includes a mating space and a rear wall. The tongue plate includes a tongue portion extending into the mating space. The pull strap unlocking device includes a locking piece, and the locking piece includes a locking protrusion. The pull strap connector further includes a pull strap pressing member provided separately from the insulating body and fixed to the rear wall. The pull strap passes through the pull strap pressing member. The pull strap is configured to unlock in a downward direction to move the locking protrusion downwardly. A method of making the pull strap connector is also disclosed.

What is claimed is: 
     
       1. A pull strap connector, comprising:
 an insulating body comprising a mating space, a top wall located at a top of the mating space, and a rear wall located at a rear end of the mating space; 
 a tongue plate comprising a tongue portion extending into the mating space, at least one surface of the tongue portion being provided with a mating portion exposed in the mating space; 
 a cable connected with the tongue plate, the cable comprises a cable extension portion extending through a bottom surface of the rear wall; 
 a pull strap unlocking device comprising a locking piece mounted on the top wall, the locking piece comprising a locking protrusion and a buckle portion protruding upwardly from the locking protrusion; and 
 a pull strap connected with the buckle portion; 
 wherein the pull strap connector further comprises a pull strap pressing member; the pull strap pressing member and the insulating body are two-piece components; the pull strap pressing member is assembled to the rear wall; the pull strap pressing member comprises a limiting wall, a first bent wall bent from one side of the limiting wall, and a second bent wall bent from another side of the limiting wall; the pull strap passes through the pull strap pressing member and is restricted between the first bent wall and the second bent wall; the pull strap is configured to unlock the pull strap unlocking device in a downward direction to move the buckle portion downwardly, thereby driving the locking protrusion to move downwardly. 
 
     
     
       2. The pull strap connector according to  claim 1 , wherein the pull strap pressing member is fixed to the rear wall by riveting. 
     
     
       3. The pull strap connector according to  claim 1 , wherein the rear wall comprises a rear wall surface, the limiting wall is parallel to the rear wall surface, the pull strap connector comprises a slot located between the rear wall surface and the limiting wall, and the pull strap extends downwardly through the slot. 
     
     
       4. The pull strap connector according to  claim 3 , wherein the rear wall comprises a first fixing groove and a second fixing groove, the first fixing groove and the second fixing groove extend backwardly through the rear wall surface, the pull strap pressing member comprises a first hook portion bent from a front end of the first bent wall toward the second bent wall, and a second hook portion bent from a front end of the second bent wall toward the first bent wall. 
     
     
       5. The pull strap connector according to  claim 4 , wherein the first bent wall and the second bent wall are parallel to each other, and both the first bent wall and the second bent wall are perpendicular to the limiting wall. 
     
     
       6. The pull strap connector according to  claim 3 , wherein the pull strap pressing member comprises a folded portion folded upwardly from a bottom of the limiting wall, and an arc surface located at a connection between the limiting wall and the folded portion. 
     
     
       7. The pull strap connector according to  claim 1 , wherein the pull strap pressing member is made of a metal sheet. 
     
     
       8. The pull strap connector according to  claim 1 , wherein the insulating body comprises a first insulating body and a second insulating body assembled with each other; wherein the first insulating body comprises a first side wall, a second side wall opposite to the first side wall, and a bottom wall connecting the first side wall and the second side wall; the mating space is defined by at least the first side wall, the second side wall and the bottom wall; and the second insulating body comprises the rear wall and the top wall extending forwardly from a top of the rear wall. 
     
     
       9. The pull strap connector according to  claim 8 , wherein each side of the first insulating body is provided with a first locking block protruding outwardly and a first extending block extending backwardly, the first extending block comprises a first locking slot;
 wherein each side of the second insulating body is provided with a second locking block protruding outwardly and a second extending block extending forwardly, the second extending block comprises a second locking slot; and 
 wherein the first locking block is locked in the second locking slot, and the second locking block is locked in the first locking slot. 
 
     
     
       10. The pull strap connector according to  claim 8 , wherein the first insulating body comprises a T-shaped positioning block, the second insulating body comprises a T-shaped positioning groove, and the positioning block is assembled and fixed in the positioning groove along a front-to-rear direction. 
     
     
       11. The pull strap connector according to  claim 1 , wherein the first insulating body comprises a first half injection hole, the second insulating body comprises a second half injection hole, and the first half injection hole and the second half injection hole form an injection hole at a seam between the first insulating body and the second insulating body. 
     
     
       12. The pull strap connector according to  claim 11 , wherein the tongue plate is a built-in circuit board, the tongue plate comprises a mounting portion which is provided with a plurality of soldering pads, the cable is soldered to the soldering pads; the pull strap connector further comprises an insulating material injected into the pull strap connector from the injection hole; after the insulating material is solidified, an insulating block covering soldering positions of the cable and the soldering pads is formed. 
     
     
       13. A method of manufacturing a pull strap connector according to  claim 1 , the manufacturing method comprises following steps:
 S1, providing the tongue plate and the cable, and soldering the cable to the tongue plate; 
 S2, providing the insulating body, and assembling the tongue plate to the insulating body; 
 S3, providing the pull strap unlocking device, and installing the pull strap unlocking device on the insulating body; 
 S4, providing the pull strap, and connecting the pull strap to the pull strap unlocking device; and 
 S5, providing the pull strap pressing member, pressing the pull strap pressing member against the pull strap, and installing and fixing the pull strap pressing member to the rear wall of the insulating body. 
 
     
     
       14. The method according to  claim 13 , wherein in the step S5, the pull strap pressing member is made of a metal sheet, and the pull strap pressing member is fixed to the rear wall by riveting. 
     
     
       15. The method according to  claim 13 , wherein the rear wall comprises a rear wall surface, the pull strap pressing member comprises a limiting wall parallel to the rear wall surface, the pull strap connector comprises a slot located between the rear wall surface and the limiting wall, and the pull strap extends downwardly through the slot. 
     
     
       16. The method according to  claim 15 , wherein the rear wall comprises a first fixing groove and a second fixing groove, the first fixing groove and the second fixing groove extend backwardly through the rear wall surface, the pull strap pressing member comprises a first bent wall bent forwardly from one side of the limiting wall, a second bent wall bent forwardly from another side of the limiting wall, a first hook portion bent from a front end of the first bent wall toward the second bent wall, and a second hook portion bent from a front end of the second bent wall toward the first bent wall. 
     
     
       17. The method according to  claim 15 , wherein the pull strap pressing member comprises a folded portion folded upwardly from a bottom of the limiting wall, and an arc surface located at a connection between the limiting wall and the folded portion. 
     
     
       18. The method according to  claim 13 , wherein the insulating body comprises a first insulating body and a second insulating body assembled with each other; wherein the first insulating body comprises a first side wall, a second side wall opposite to the first side wall, and a bottom wall connecting the first side wall and the second side wall; the mating space is defined by at least the first side wall, the second side wall and the bottom wall; and the second insulating body comprises the rear wall and the top wall extending forwardly from a top of the rear wall. 
     
     
       19. The method according to  claim 13 , wherein the first insulating body comprises a first half injection hole, the second insulating body comprises a second half injection hole, and the first half injection hole and the second half injection hole form an injection hole at a seam between the first insulating body and the second insulating body. 
     
     
       20. The method according to  claim 19 , wherein the tongue plate is a built-in circuit board, the tongue plate comprises a mounting portion which is provided with a plurality of soldering pads, the cable is soldered to the soldering pads; the method further comprises a following step:
 S6, providing an insulating material, and injecting the insulating material into a space between the first insulating body and the second insulating body from the injection hole; after the insulating material is solidified, an insulating block covering soldering positions of the cable and the soldering pads is formed.